Programming Binary Code System

Programming


Binary Code System:

It is a method of expressing numerical value by numbering system based on two numbers. In this system, there are only two digits, 1 and 0. Zero is emergency digit and it is to be used when stock is exhausted. Use of zero is very frequent because the stock of one digit exhausts very quickly.

Development of numbers in this system is as follows:
Thus, in a binary code system the data is represented in terms of 0’s and l’s and this system is used to represent data on a com-
puter.

Decimal System:

In this system there are ten digits— 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0.

The tenth digit zero is called emergency digit and I s to be used when all other digits from 1 to 9 are exhausted. The zero digit is to be used in a systematic way i.e. first with first digit (10), then with second digit (20) and then with third digit (30) and so on and so forth. Thus , the base of decimal system is 10.

Scanners:
Scanners are devices which allow direct data entry into the computer without doing any manual data entry.

Flow Chart:

A flow chart illustrates the sequence of operations to be performed to arrive at the solution of a problem. The operating instructions are placed in boxes which are connected by arrows to indicate the order of execution. These charts are an aid to writing programmes and are easier to understand at a glance than a narrative description. A flow charts also known as a flow diagram.

While preparing flow charts, certain conventions have come into use as given below:

A flow chart for the computation
of Economic Order Quantity (i.e., EOQ)
may be as follows:

Distributed Data Processing (DDP):
DDP is a system in which the computing and other resources are decentralised at different places instead of being located at just one place. The places at which computers are installed are inter-connected.
In this system, there is some form of communication linkage between locations where the computer resources and users are situated. A manufacturing or trading or service organisation like banking can successfully make use of distributed data processing system.


Internet:

Any database situated in any corner of the world can be linked through the internet. Internet refers to network of different networks. The most important advantage of internet is the accessibility to information available anywhere in the world.

Every organisation or individual using personal computer can create a web site in the internet and keep any sort of information on the web site. This information is accessible from anywhere in the world using computers.
Another advantage of internet is e-mail. E-mail is helpful in faster, better and cheaper communication across the world. Internet is also being used as a medium through which trade and aids to trade are carried out.